Buttoner



FIG. 1 is a front view of a buttoner showing my new design;

FIG. 2 is a left side view of the buttoner;

FIG. 3 is a right side view of the buttoner;

FIG. 4 is a top view of the buttoner; and,

FIG. 5 is a bottom view of the buttoner. 

The ornamental design for a buttoner, as shown and described. 